Tea and Caffeine:What Tea Has the Most Caffeine?
Many tea lovers wonder if tea contains caffeine when they drink it for the first time. The first thing to know is that all teas contain caffeine, regardless of the type of tea, and although different teas are processed in different ways, all of the six main types of tea are made from a single plant, the tea tree, so all teas contain caffeine.
About the safe intake of caffeine
It is estimated that 80% of the world's population enjoys drinking coffee every day. Due to its stimulating effects on the body, scientists believe that caffeine has a number of health benefits, such as increasing alertness, improving athletic performance and mood, and boosting metabolism. Both the United States Department of Agriculture (USDA) and the European Food Safety Authority (EFSA) define safe caffeine intake as no more than 400 milligrams per day and no more than 200 milligrams in a single intake, or no more than 3 milligrams per kilogram of body weight. That said, consuming more than 500 milligrams of caffeine in a single sitting can cause some problems. Scientists have noted that high caffeine intake can lead to anxiety, restlessness, and insomnia. And some studies have shown that regular caffeine intake, even in moderate amounts, can lead to chronic headaches and migraines. In addition, caffeine is considered mildly addictive and some people may be more prone to dependence. Although tea also contains caffeine, the body's intake of caffeine is much lower than coffee because tea can be brewed over and over again.
There is no standard answer to this question, and it is important to think about it from different perspectives. This is because the caffeine content of tea is affected by a variety of factors, including the processing of the tea (the six tea types), the shape of the tea, the method of brewing the tea, and many other factors. If you want to avoid consuming more caffeine when you drink tea, you can consider the following perspectives.
First of all, from the perspective of the shape of the tea leaves, drinking Japanese matcha tea（green tea powder） consumes the most caffeine, because matcha tea is ground into a powder, and when you drink it, you are consuming all the caffeine intact.
Next is the processing technique. Generally speaking, the degree of fermentation does not have a very big impact on the caffeine content, green tea, white tea and this kind of tea is not peroxidized or only slightly oxidized, and the natural caffeine content in the tea leaves is almost undamaged, thus retaining a higher caffeine level in the dry tea. However, many people believe that black tea is more refreshing, this is because black tea will be kneaded during processing, which leads to a large amount of caffeine content will be precipitated on the surface, and more caffeine will be dissolved when brewing.
Finally, the brewing method, when drinking tea, the amount of caffeine intake and the temperature of the water into a positive relationship, that is to say, if the higher the temperature of the water, the more caffeine content precipitation. Also if the tea is steeped for a longer period of time, more caffeine will be dissolved.
SEE MORE ABOUT TEAS
If you have questions about selecting tea:
Learn-more-about-chinese-tea
If you have questions about the benefits of tea:
Health-benefits-of-chinese-tea
If you have questions about brewing tea:
How-to-brew-loose-leaf-tea